baber/WOPTO huggingface dataset:
Patent GB-113444-A (GB)
Title: Improvements in or relating to Searchlights.
Inventor: SPERRY ELMER AMBROSE
IPC: H05B31/00
Filed: 1918-02-07
Abstract: 113,444. Sperry, E. A. Feb. 7, 1917, [Concention date]. Search-lights; lantern screens.-In a search-light, a screen for masking the glowing electrodes when current is switched off is arranged so as to be held away therefrom as long as the are is in existence, and so that no are can be struck until the screen has been withdrawn. Means for withdrawing the screen during replacement of the negative carbon may be provided, and the search-light is formed with a reflector 105, Fig. 9, for concentrating part of the light of an are on to a thermal switch. The screen is in two trough-shaped parts 60 carried by arms 61, 64 moved simultaneously in opposite directions by bevel-gear 67 and a vertical shaft 68. An arm 69 on this shaft is linked to a lever 71 which is attached to a spring and to the core of a compound series-shunt solenoid so that the screen is swung out of the way when current is switched on. Attached to the lever 71 is an eve 78 surrounding a pin attached to a rocker 31 which controls the feed of the carbons. The eye is narrow at one end so that movement of the rocker out of its inoperative position is prevented until the lever 71 has moved so as to withdraw the screen 60 from around the electrodes. Thus an are cannot be struck while the screen is in a position to be damaged thereby. The negative electrode carrier is attached to the regulator-box by studs 132 passing through curved slots, so that the carrier can he slightly rotated when a new electrode is to be inserted, This motion, by means of a spring- pressed bell-crank and an arm 86, turns the shaft 68 so as to open the screen 60. Specifications 12999/15 and 124,213 are referred to.
Patent GB-1365582-A (GB)
Title: Pallet
IPC: B65D19/00
Filed: 1972-01-18
Abstract: 1365582 Load handling pallet IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Jan 1973 [18 Jan 1972] 2345/72 Heading B8H A load handling pallet is formed of identical upper and lower decks each provided with pairs of dove tail slots 12, 13 at the corners and midpoints of the sides to slidably receive complementary shaped projections 17a, 17b, 19a, 19b on link blocks. A load block Fig. 4 (not shown) may connect the centres of the deck.
Patent GB-1362474-A (GB)
Title: Buffer device
Inventor: LACHMANN H-P
IPC: F16F1/371
Filed: 1972-01-18
Abstract: 1362474 Marine fenders CLOUTH GUMMIWERKE AG 18 Jan 1972 [29 Jan 1971] 2369/72 Heading B7S [Also in Division F2] A fender comprises a hollow elastomeric body having a substantially rigid first wall portion 9 defining a support surface and extending approximately transversely of the intended impact direction, two flexible second wall portions 7  connected to the first wall portion 9 and extending approximately perpendicularly to the support surface, and a flexible further wall portion 10 having reinforcing inserts 11 which give a flexibility half that of the second wall portions 7. The first wall portion is made rigid by an insert. There may be a further transverse portion 10 with elastic metallic inserts 11 extending across the cavity (not shown). On impact the limbs 7 are compressed, then the portion 10 begins to bend, and then the limbs 7 bulge out, The L-D characteristic is given (Fig. 6, not shown).
Patent GB-1453112-A (GB)
Title: Method of and apparatus for tamping and levelling a railway track
IPC: E01B27/12
Filed: 1974-01-18
Abstract: 1453112 Track levelling and tamping FRANZ PLASSER BAHNBAUMASCHINEN-INDUSTRIE GmbH 18 Jan 1974 [26 April 1973] 02434/74 Heading E1G A railway track is levelled and tamped, by application of vibration and pressure to the ballast on both longitudinal sides of the sleepers by crib tamping tools 8, the track being lifted during and/or before tamping, to the correct position as determined by a reference wire 5 and held under pressure against a stop device (not shown). For small connections the track is lifted solely by tamping but large connections are made by conventional lifting gear 12 either alone or in combination with tamping. A surface consolidator 14 and a sweeper plough for the ballast edges may be mounted to the rear of external tamping tools 9. The operation of the tamping tools 8, 9 lifting gear 12, and stop device (not shown) are controlled automatically by a central unit 18 connected to a detector 6 on the reference wire 5. The lifting gear 12 may be used as the stop device, and the track may be laterally aligned at the same time.
Patent GB-316655-A (GB)
Title: Improvements in process of and machine for repairing runs in fabrics
IPC: D04B17/04
Filed: 1929-01-24
Abstract: 316,655. Gotham Knitbac Machine Corporation, (Assignees of Plumley, R. L.). Aug. 2, 1928, [Convention date]. Darning; frames. - In a machine for repairing rims or ladders in knitted fabrics by a latch-needle, of the kind described in Specification 304,650, the needle is carried in front of the presser foot and the feed-wheels and ratchet wheel for imparting the step-by-step movement thereto are mounted as a unit. The stocking or goods to be repaired are placed over the feed unit. Spacing discs 42 engage the cross-threads in peripheral teeth to hold them accurately in position for entry of the latch needle 27 for picking up the loops. The stocking is fed by the feed wheels 43, which are rotated step-by-step by the central ratchet wheel 47 and a pawl on the end of the arm 39. A pawl on the frame prevents backward motion of the feed unit. The feed wheel 43, spacing wheels 42, and ratchet 47 are bolted to form a single unit rotating on the pin 46. Covers 53 are secured by a bolt 56 which is situated so as to help the fabric to clear the feed wheels after the rim is repaired. The needle bar is mounted ahead of the presser bar 18 and is reciprocated by the pivoted arm 14. The arms 14, 39 are rocked from the main shaft 8 in the manner described in the prior Specification. The presser is lifted manually by the cam 31 or pedally by the bar 33. The frame is provided with covers 5, 16, 44 for inspection and lubrication. The presser foot 70 may have the form shown in Figs 1, 7, and 8.
Patent GB-1145152-A (GB)
Title: Manufacture of monocyclic aromatic meta-diamines
Inventor: BIRCHER BRIAN JOHN
IPC: C07C209/36
Filed: 1966-01-20
Abstract: 1,145,152. Diamines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 Jan., 1967 [20 Jan., 1966], No. 2644/66. Heading C2C. Monocyclic aromatic meta-diamines with a reduced content of the isomeric ortho-diamines are prepared by, in a first stage, treating mixed dinitro monocyclic aromatic hydrocarbons with a primary or secondary amine containing 2-12 carbon atoms and having a molecular weight not greater than 200, at an elevated temperature, and, in a second stage, reducing the product to the diamino compounds and recovering the meta-diamines by distillation. The treatment of the nitro compounds with the amine may be carried out in a solvent. The reduction may be achieved by catalytic hydrogenation.
Patent GB-928494-A (GB)
Title: New quinoxalines
IPC: C07D241/44
Filed: 1961-01-23
Abstract: The invention comprises compounds of general formula <FORM:0928494/IV(a)/1> in which R and R1 are hydrogen atoms or alkyl, alkenyl, hydroxyalkyl, carboxyalkyl, cycloalkyl, aryl, aralkyl or dialkylaminoalkyl radicals or R and R1 may be linked with one another to form, together with the nitrogen atom, a heterocyclic ring, which ring may also contain an oxygen atom, R11 stands for a hydrogen atom or an alkyl, alkenyl, alkoxyalkyl, alkenoxyalkyl, carbalkoxyalkyl, cycloalkyl, aryl, aralkyl, chloroaryl, chloroaralkyl, alkylmercaptoalkyl or dialkylaminoalkyl radical or is a grouping of general formula <FORM:0928494/IV(a)/2> R111 stands for a hydrogen atom or a substituent which is inert towards amines and alkylating agents (e.g. methyl, methoxy, trifluoromethyl, chloro, nitro), R1111 is an alkyl radical and n is 1 or 2 and the acid addition salts thereof; and processes for the preparation thereof by (1) reacting a 2,3-dihaloquinoxaline with a compound R.NH.R1 and reacting the 2-amino-3-halo-quinoxaline (e.g. 2-dimethylamino-3-chloroquinoxaline) produced with a compound HS.R11 in the presence of an acid-binding agent, and (2) heating a 2,3-dimercapto-quinoxalin with a compound R.NH.R1 to give a 2-amino-3-mercaptoquinoxaline, the mercapto group of which is then, if desired, converted into an -SR11 group, in which R11 is other than a hydrogen atom or a quinoxalinyl-mercapto-alkylene radical, by reaction with a compound R11-X, in which X is a halogen atom or, in the case where R11 is a quinoxalinyl-mercapto-alkylene radical, by reaction with a compound X-alkylene-X.ALSO:Insecticidal compositions contain, with a solid or liquid diluent or carrier, as active ingredients, one or more quinoxalines of the general formula <FORM:0928494/VI/1> in which R and R1 are hydrogen or alkyl, alkenyl, hydroxyalkyl, carboxyalkyl, cycloalkyl, aryl, aralkyl, or dialkylaminoalkyl radicals or R and R1 may be linked with one another to form, together with the nitrogen atom, a heterocyclic ring, which ring may also contain an oxygen atom, R11 stands for a hydrogen atom or an alkyl, alkenyl, alkoxyalkyl, alkenoxyalkyl, carbalkoxyalkyl, cycloalkyl, aryl, aralkyl, chloroaryl, chloroaralkyl, alkylmercaptoalkyl or dialkylaminoalkyl radical or is a grouping of general formula <FORM:0928494/VI/2> R111 stands for a hydrogen atom or a substituent which is inert towards amines and alkylating agents (e.g. methyl, methoxy, trifluoromethyl, chloro, nitro), R1111 is an alkyl radical and n is 1 or 2; and the acid addition salts thereof. A specified carrier comprises acetone and an aryl hydroxy polyglycol ether as emulsifier. p
Patent GB-1116501-A (GB)
Title: Process for the purification of polyethers
Inventor: BOWE WILLIAM HAROLD
IPC: C08G65/30
Filed: 1965-01-21
Abstract: Polyethers, which are obtained by polymerizing a cyclic oxide in the presence of an acidic or basic catalyst, are purified by treating the polymerization product with a basic or acidic substance in an amount approximately stoichiometrically equivalent to the amount of catalyst present and thereafter filtering the substantially neutral polyether through a layer of synthetic magnesium silicate.  The treatment of the polyether may be effected at normal or elevated temperatures and water in an amount of 2 to 30% by wt. of the polyether is preferably added before or after the addition of the basic or acidic substance. Specified basic materials are sodium carbonate, bicarbonate, and acetate, calcium hydroxide, calcium carbonate and barium hydroxide, and specified acidic materials are sulphuric, phosphoric, acetic acid, oxalic, glutaric and adipic acids.  The synthetic magnesium silicate layer may be formed by slurrying the latter, preferably in admixture with an inert porous solid as filter aid, with a polyether similar to that to be purified and then passing the slurry through a filter to give a pre-coat layer; the layer preferably contains 0.1 to 1% by wt. of magnesium silicate based on the weight of polyether to be purified.  The polyethers may be polymers or copolymers of cyclic oxides, e.g. ethylene oxide, epichlorhydrin, 1,2-propylene and -butylene oxides, 2, 3-butylene oxide, oxacyclobutane, substituted oxacyclobutanes and tetrahydrofuran, or the cyclic oxide may be polymerized in the presence of a compound containing one or more active hydrogen atoms, e.g. monohydric alcohols, monohydric phenols, monocarboxylic acids, H2O, NH3, hydrazine, glycols, glycerol, trimethylol propane, triethanolamine, pentaerythritol, sorbitol, sucrose, phloroglucinol, ethanolamine and ethylene and tolylene diamines, and such polyethers may have a molecular weight of 200-10,000.  The polyether may also be stabilized with an antioxidant, e.g. a sterically hindered phenol, either before or after neutralization.  The products may be employed in the production of polyurethanes.
Patent GB-583894-A (GB)
Title: Pulse modulation systems
IPC: H03K9/04
Filed: 1944-02-15
Abstract: 583,894. Pulse modulation. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). Feb. 15, 1944, No. 2772. [Class 40 (v)] In a pulse-modulation receiver, interference is reduced by the use of a gating valve which opens up the detector to each received signal pulse, the gating pulse being slightly wider than the signal pulse and derived through a delay network from a preceding signal pulse. The signal derived from a radio receiver 20 and limiter 24 takes the form of pairs of short pulses 1, 2 ; 3, 4 ; &c., as in Specification 579,777, the interval a between each pair being variable with the modulation. The pulses are applied directly to a demodulator 35 which is normally biased prohibitively by a source 36. The pulses are also applied through an amplifier 32 to a delay network 33 from which emerge wider pulses 13, 14 delayed by a period equal to the mean interval c between corresponding components 1, 3 or 2, 4 of consecutive pairs. The pulses 13, 14 pass through a limiting amplifier and are fed as wider pulses 15, 16 to open up the gating valve in the demodulator 35. These gating pulses coincido with and overlap slightly the following pair 3, 4 of signal pulses, so that interference such as 23, 26 occurring between the pulses is not admitted to the demodulator. Specification 511,222 (as open to inspection under Sect. 91) is referred to.
Patent GB-663610-A (GB)
Title: Improvements in or relating to vacuum cleaner accessories
Inventor: FISKER PEDER ANDERSEN
IPC: A47L9/24
Filed: 1950-06-23
Abstract: 663,610. Tube joints. AKTIESELSKABET FISKER & NIELSEN. June 23, 1950, No. 2807/51. Divided out of and addition to 663,539 under which a Specification was laid open to inspection under Sect. 91 of the Acts; Jan. 11, 1949. Class 99 (i) In the vacuum cleaner accessories described in the parent Specification comprising at least two suction nozzles 2 which are fitted alternatively on a suction tube 1 and have resilient tongues 6 that can engage in an annular groove 11 of the tube, the distance between the shoulder 4 and the free ends of the tongues of one nozzle is greater man the distance between the tube end 14 and the groove. When the nozzle is mounted on the tube with the tube end abutting the shoulder the tongues press against the tube so that the nozzle is non-rotatably mounted.
Patent GB-1432757-A (GB)
Title: Electrical pin receptacles
IPC: H01R13/11
Filed: 1975-01-22
Abstract: 1432757 Two-part couplings AMP Inc 22 Jan 1975 [14 Feb 1974] 2861/75 Heading H2E A connector 1 comprises a pin socket 13 defined by concave side walls 11, 12 which extend through and below the bight 8 joining opposed walls 6, (7) of a channel. Ears 24 formed either side of the socket engage shoulders 36 in a housing 32. The arms 26, 28 are crimped to the conductor and insulation, respectively, of a lead 4.
Patent GB-567369-A (GB)
Title: Improvements in or connected with cranes
IPC: B66C23/72
Filed: 1943-02-20
Abstract: 567,369. Cranes. BOYD, J. Feb. 20, 1943, No. 2866. [Class 78 (iv)] The balanced jib .of a level-luffing crane is luffed by a fluid-pressure ram acting directly on the jib, i.e. without interposition of gearing or rope tackle, and powered by a pressuregenerating system mounted on the crane. Fig. 2 shows a construction in which the cylinder 1 is secured to a sluing but non-luffing part of the crane, and the ram 2 is connected by a pitman 3 to a point on the jib below its luffing axis. A motor-driven rotary pump 8 is connected at its ends with the ends of the cylinder 1 by conduits 13, 14, so that the direction in which the ram piston 10 is pushed depends on the direction of rotation of the pump 8. Relief valves 19, 20 byepass the pump 8 to avoid excess pressures caused by shocks to the jib. Each of the conduits 13, 14 is connected by a pipe 16 to a reservoir 9 through two-way valves 17.
Patent GB-1068014-A (GB)
Title: Improvements in or relating to pressure gauges
IPC: G01L7/16
Filed: 1965-01-22
Abstract: 1,068,014. Photo-elasticimetric apparatus. I. HAWKES and A. ROBERTS. Jan. 19, 1966 [Jan. 22, 1965], No. 2933/65. Heading G2J. A pressure gauge comprises a block 1 of birefringent material housed in a mount 18 having means for its connection to a source of fluid pressure whereby the block 1 is subjected to compressive stress exerted from opposite sides of its periphery, the changes in stress being observed with polarized light. The bi-refringent block 1 and the housing are both of cylindrical shape, the block 1 being mounted in a transverse cylindrical bore 19 in the mount 18. The mount 18 is also provided with an axial bore 20 which intersects the bore 19. Pressure members 21, 22 are housed in the bore 20 on opposite sides of the block 1. The open end 14 of the bore 20 provides access to a source of fluid pressure. The members 21, 22 are shaped to form surface or line contact with the block. A polarizer is placed coaxially at each end of the block 1 to permit observation of fringes within the block 1. The analyzer may be rotatably mounted about the axis of the block 1 to provide goniometric compensation, a scale indicating the degree of rotation in terms of the applied pressure. In modifications the fringes may be observed by reflected light in which case only one polarizer is necessary, a reflecting coating being located at the end of the block 1 remote from the polarizer and a quarter wave plate being arranged behind the polarizer. Also, direct contact between the fluid and the block 1 may be provided. In the gauges of Figs. 13- 15 (not shown) a plurality of fluid pressures are arranged to operate on a single block of birefringent material.
Patent GB-1364402-A (GB)
Title: Monochromator mount
IPC: G21K1/06
Filed: 1973-01-19
Abstract: 1364402 X-ray diffraction apparatus EUROPEAN ATOMIC ENERGY COMMUNITY 19 Jan 1973 [19 Jan 1972] 2967/73 Heading H5R A curved crystal monochromator for X-ray diffraction apparatus comprises a curved crystal 1 carried on a head secured to an adjustable mount, the mount including a column whose length can be varied by a screwed bush 11 and which can be rotated about its axis by virtue of a cylindrical part held in a bush 6. At the top of the column is a slide 12 along which the crystal head can be adjusted. The crystal can also be tilted about an axis 10 by means of screw 9 and about the axis of a spindle 18 by means of a screw 16 and a lever arm 17. In use, the incident beam is parallel to the slide 12.
Patent GB-786648-A (GB)
Title: Arc welding pistols
Inventor: BRADLEY WILFRED EDWARD
IPC: B23K9/29
Filed: 1955-02-02
Abstract: 786,648. Welding by fusion. NAPIER & SON, Ltd., D. Jan. 30,1956 [Feb. 2, 1955], No. 3051/55. Class 83 (4). In an arc welding pistol in which a filler wire is fed to an arc produced by a non-consumable electrode, the wire feed mechanism including the driving motor is located within the piston. The driving motor 12 together with a cooling fan 13 is carried within the handle 1 and through gearing drives a toothed feed roller 14 which is in mesh with a similar roller 15 spring urged towards the roller 14. Wire 18 is gripped in grooves in the feed rollers 14, 15 and is fed from a flexible guide 11 through a rigid tube 19 which passes outside the water-cooled gas nozzle 3 to guide the wire 18 to a point adjacent the tip of the electrode 22. A flexible tube 4 connected to the rear of the pistol contains conduits for argon and water and the electrical supply conductors. Movement of the trigger 32 to an intermediate position operates a relay to connect up the welding current and complete actuation of the trigger in addition operates the wire feed motor 12. A push-button 35 serves as an independent control for the motor 12.
Patent GB-765302-A (GB)
Title: Improvements in or relating to the manufacture of flanged cast iron cylinder liners
IPC: B22D19/08
Filed: 1955-02-02
Abstract: A cylinder liner is cast from an alloy grey cast iron consisting of 3.25-3.50 per cent carbon 2.00-2.25 per cent silicon 0.50-0.80 per cent manganese 1.00-1.50 per cent copper 0.30-0.50 per cent chromium 0.10-0.25 per cent nickel 0.12 per cent max. sulphur, 0.25 per cent max. phosphorus and the balance iron.  The liner is hardened by heating to 1600 DEG F. and quenching for one minute in a salt bath at 475 DEG F. followed by air cooling for 1 1/2 hours.  It is then tempered for one hour at 350 DEG F.-425 DEG F.  A flanged end of the liner which is to be cold worked is annealed below the critical temperature at about 1000 DEG F. to 1400 DEG F. by localised induction heating.
Patent GB-368476-A (GB)
Title: Improvements in or relating to spring balancing devices
IPC: B23Q1/00
Filed: 1931-01-30
Abstract: 368,476. Balancing - apparatus. CONSOLIDATED PNEUMATIC TOOL CO., Ltd. and STEWART, A., 170, Piccadilly, London. Jan. 30, 1931, No. 3080. [Class]78 (ii).] A spring balancing device for portable electrically driven tools comprises spring drums a, f on which are wound the supporting cable b and conductor cable g, respectively. The drums are mounted on a common shaft c and are rotated by a spring e, but a spring may be provided in the drum f if desired. The drums may be tapered instead of cylindrical. The conductors of the current supply cable are attached to terminals m connected to brushes l which are mounted in the casing d and contact with concentric rings h mounted in a plate j secured on the bearing k of the drum f. The terminals of the cable g are connected to the rings h.
Patent GB-749926-A (GB)
Title: Seal blank
IPC: B65D63/06
Filed: 1954-02-02
Abstract: 749,926. Metal strap seals. SIGNODE STEEL STRAPPING CO. Feb. 2, 1954 [Feb. 10, 1953], No. 3106/54. Class 146(2) A sheet metal seal for joining the overlapping ends 10, 12 of metal strapping has a flat rectangular central portion 16 slightly wider than the strapping, and a pair of rectangular wings 18 joined by rounded corners 15 to the central portion along its side edges and extending diagonally outwardly, a groove 22 being formed in the exterior surface of each wing adjacent the front edge thereof and parallel thereto. Grooves 22 extend about half the length of the seal and lie in the middle portion of the wings. As shown, the seal has a groove 20 on the inner surface of each wing slightly outwardly of corners 15 and extending the length of the seal at a distance from the edge slightly more than the thicknesses of the strapping. When the seal is applied by a tool having folding jaws 26, the ends 30 of the latter first engage the seal outwardly of grooves 22, as in Fig. 3, then within grooves 22, as in Fig. 4, bending the edges of the central portion 16 downwardly as at 34, and finally inwardly of the grooves, as in Fig. 6, bending portions 34 upwardly. The edges of the folded seal do not quite touch the strapping edges, thus reducing friction as the strapping is tightened to facilitate the application of the strap and seal. Specifications 585,004, 675,310 and 692,529 are referred to.